Question 29
On increasing a,b increases in such a manner that ab remians___and postive, then a and b are said to vary directly with each other.
On increasing a,b increases in such a manner that ab remians constant and positive, then a and b are said to vary directly with each other.
Question 30
If on increasing a,b decreases in such a manner that___remains ___and positive, then a and b are said to vary inversely with each other.
Question 54
When two quantities are related in such a manner that, if one increases, the other also increases, then they always vary directly.
Question 24
Two quantities are said to vary___with each other, if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains constant.